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Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7

Natsuki Aito·Minoru Soda·Yoshiaki Kobayashi·Masatoshi Sato
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Abstract

Various physical properties of the pyrochlore oxide Y2-xBixIr2O7 have been studied. The magnetizations M measured under the conditions of the zero-field-cooling(ZFC) and the field-cooling(FC) have different values below the temperature T=TG. The anomalous T-dependence of the electrical resistivities r and the thermoelectric powers S observed at around TG indicates that the behavior of the magnetization is due to the transition to the state with the spin freezing. In this spin-frozen state, the Hall resistivities rH measured with the ZFC and FC conditions are found to have different values, too, in the low temperature phase (T<TG). Possible mechanisms which induce such the hysteretic behavior are discussed.

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Natsuki Aito, Minoru Soda, Yoshiaki Kobayashi, Masatoshi Sato. 2003-02-21. Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7. https://doi.org/10.1143/jpsj.72.1226

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